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Sir Thank you for letting me allow to hear your kind lecture, sir. Honestly speaking, it is too difficult for my poor head to understand, but I would try to continue to study and make efforts to understand this subject, sir. In 2025 at Osaka ( Japan ), we have Osaka Expo ( from Apl to Oct ). 30 years ago, we have had sevier major earthquake in Kobe ( Japan ). Almost 7000 people died. And perharps we would have another major earthquakes in 30 years. If you would have a schedule to come to Japan, I recommend you to watch NHK + video program " Capital City Earthquake" and " South Sea Trough earthquake " at internet in advance, sir. At Osaka, one prediction would be 1. South Sea Trough would break at Wakayama offing 2. Emergency Call will ring on your TV or cell phones, and P waves of earthquake will come. So you need to extinguish the fire and protect your body. 3. after 2 ～ 3 [s] when emergency call ring, S waves of earthquakes will come. protect your body, sir. 4. If you are safe then, please run away to high tough buildings or safe place, because in 1 hour "Tsunami" would come to Osaka City, 5.If you filled up in ground, please survive under 72 hours ( 3 days ). Rescue Team is searching your position ( if cell phone GPS is on ). Attention fire. 6. Please save your life, sir. If you have pet bottle water or emergency food in your bag, you would be more safe, sir. At the end of 19 century, Lord Kelvin culculated the age of earth, and that is one reason to lead discovery of Quantum Mechanics ( discover radiation and geothermal ). Quantum Mechanics and geothermal Energy and very slowly deformation and flow of Rocks in the earth is One Reason of Major Earthquakes, I suppose. In my childhood, I was educated faithful Catholic Fathers. They told us that "human would never defeat the nature, but also we must never forget the victims of major natural disasters. You should continue to make effort never to repeat the same mistakes." So I continue to study , sir. Only God know the future, but I think we must continue to make efforts to avoid the victims at natural disasters, sir. Please take care of yourselves and May God Bless You, sir. Thank you for your telling us Geothermal and Radiation and Quantum Mechanics, sir. sincerely,

This course on Quantum Mechanics is very particular and interesting.

It shows a lot about the degeneracy of states in Quantum Mechanics for atoms and diatomic molecules and comprehensively explains the spin-orbit coupling, a hard task to explain, learn, & understand.

In addition, it allows linking theoretical concepts with practical applications such as the understanding of the ground state, and that there is degeneracy for the different degrees of freedom not only in excited states but also in the ground state.

It shows practically the degeneracy in the n & the J quantum numbers. This course explains the splitting of hydrogenic atoms, and how are distributed the states according to the type of degrees of freedom, electronic, rotational, and vibrational ones.

Finally, the course addresses how some of those states can be excited thermally, and why others cannot.

I highly recommend this course for those interested in linking Quantum Mechanics to practical purposes and not merely the solution of the axiomatic part of the subject.

It has great exercises.

This course was very informative and helpful. It also forced you to learn the equations and derivations. I really enjoyed the quality of the content. Thank you John and the University of Colorado Boulder for supplying this course through Coursera!

Thank you very much to Professor John Daily and the University of Colorado Boulder for providing such an amazing course. This program is concise and to the point. It has helped me learn more about quantum mechanics in a short period of time.

Amazing tutorial and presentations. Got a lot of information and enriched my knowledge in quantum mechanics.

My sincere gratitude to Mr. John W. Daily for guiding me through this course.

It was a Great Learning experience. I certainly learned about a lot many new things related to Quantum Mechanics. Thank you Professor Daily !!

Great to meet Dr. John W. Daily

He surely made the syllabus and his instructions vivid and clear which helped a lot. Thanks !

This course is very useful to me ,more informations are gathered in my self from this course

I love this topic and I really enjoyed the lessons, I have learned so much. Thanks

it's a good course for a basic and conceptual understanding of quantum mechanics.

First experience of officially learning quantum mechanics, excellent course

Best instructor and wonderful teaching style and I love quantum.

It is very helpful for students to understand concepts clearly

very good it explains you the basics of Quantum Mechanics

It was a great opportunity to attend this course.

un curso muy completo y con conceptos muy claros

I learned so much more about quantum mechanics

EXCELLENT COURSE MATERIAL AND DESCRIPTION

Wonderful course. I have learned a lot.

A good and full of knowledge session

very informative interesting course

its really great for keen learner.

AMAZING IF YOU ARE PHYSICS LOVER